Integrations
Connect what
already exists.
Integrates with everything. Owns nothing.
Trellis sits above EHRs, case management platforms, referral networks, 211 systems, and legacy environments — turning disconnected activity into a coordinated intelligence layer.
Open standards where possible. Practical adapters where necessary.
No rip-and-replace. No vendor lock-in. No dead-end architecture.
Interoperability is table stakes. Learning is the difference.
Most integration pages stop at compatibility.
Trellis goes further.
It does not just connect systems. It turns the activity flowing through them into signal — so every referral, response, and outcome improves the network over time.
Built on open standards
Trellis uses the standards already adopted across healthcare, community systems, and public-sector infrastructure — which makes it easier to embed, govern, and scale across real environments.
| Standard | Version | Trellis Role |
|---|---|---|
| OpenReferral HSDS | 3.0 | Canonical import/export format for 211 systems nationally. |
| FHIR R4 / US Core | 4.0.1 | EHR integration surface. SMART on FHIR and CDS Hooks. |
| 360X | 1.0 | Closed-loop referral transaction protocol. Bidirectional outcome signal. |
| SDOH Clinical Care IG | HL7 ballot | SDOH screening result ingestion. Gravity Project Z-code mappings. |
| IHE PIXm / PDQm | ITI-83/84 | Patient identity cross-referencing. MPI layer. |
| AIRS Taxonomy | 2024 ed. | Canonical human services classification vocabulary. |
Standards make Trellis portable. What Trellis learns from the network is what makes it valuable.
Built for real-world interoperability
Compatible systems
Trellis does not ask organizations to standardize on one stack. It meets systems where they already are.
EHRs
Epic, Cerner, Athena, OCHIN — clinical workflow context via SMART on FHIR and CDS Hooks
Case Management
Eccovia, Apricot, Clarity HMIS, Netsmart — care coordination context via REST and GraphQL surfaces
211 / CIE Systems
Directory source of truth — any HSDS-compatible system nationally via bulk import and delta feeds
Referral Networks
Transactional coordination and outcome signal via 360X-connected platforms
Where Trellis sits
Trellis does not replace the systems above it. It connects them into a learning layer below.
Not just integration. Intelligence.
Traditional integrations move data. Trellis understands it.
Normalize
Unifies inconsistent formats, naming conventions, and data structures across systems automatically.
Enrich
Adds metadata like capacity status, closure rates, acceptance history, and network performance signal.
Monitor
Continuously evaluates system behavior, referral outcomes, and network health in real time.
Three ways to connect
Not every system is equally modern. Trellis is designed for that reality.
API call
Best for systems that want Trellis intelligence embedded directly into existing workflows. POST /v1/match returns a ranked shortlist in a single call.
REST · GraphQL · OAuth 2.0
Embedded widget
Best for clinical environments that need context-aware matching without forcing users into a separate tool. Reads context directly from the EHR encounter.
SMART on FHIR · CDS Hooks
Data feed / import
Best for 211 systems, regional data partners, and organizations managing resource catalogs at scale. Staged diff review before any changes go live.
HSDS 3.0 · bulk ZIP · SFTP
For systems without APIs, Trellis provides HL7 v2 adapters and flat-file / SFTP pipelines. No organization should be excluded because its systems are old.
What each system sends and receives
Different systems contribute different context. Trellis accepts what each one knows and returns the intelligence needed for the next decision.
| Caller type | Method | Sends | Receives |
|---|---|---|---|
| EHR system | SMART on FHIR / CDS Hooks | FHIR Patient + SDOH Conditions | Ranked matches surfaced inline |
| Case management | REST / GraphQL | Client profile: SDOH flags, demographics, enrollment | Ranked shortlist with eligibility pre-check |
| CLR platform | REST + 360X outcomes | Client SDOH at initiation; outcome events after referral | Ranked shortlist; enriched matching from signal |
| CHW portal | Authenticated REST (OAuth 2.0) | Manual context: need toggles, location, language | Ranked shortlist with full detail + refer payload |
| 211 data partner | HSDS bulk import / delta | HSDS ZIP package (org, location, service CSVs) | Staged diff report; anonymized outcome feed |
| Public / patient app | Public read API (rate-limited) | ZIP, service category, language | Published listings; no network signals |
Multi-speed connectivity for the real world
Networks are uneven by nature. Some organizations have APIs. Others have email and a shared inbox. Trellis is designed for both.
Tier 1
Full API / FHIR
For large CBOs with technical infrastructure. Direct FHIR/REST integration, full bidirectional data flow.
Tier 2
Hosted portal
For mid-size organizations. Web portal for listing management, referral receipt, and status updates. No developer required.
Tier 3
Email/SMS bridge
For small CBOs and volunteer-run organizations. Referrals delivered as structured emails with a one-click response form. No login, no account, no portal.
Every connection makes the network smarter.
Integration is not a one-time event. Once a system connects to Trellis, every referral it sends and every outcome it reports strengthens the intelligence layer for the whole network.
More connected systems means better matching, better visibility, and better routing for everyone — regardless of which EHR, referral platform, or case management system they use.
The network gets smarter every time it runs.
Every system can connect.
The network gets smarter when they do.
Ready to connect the systems you already have?
Whether your environment speaks FHIR, REST, HSDS, HL7, or nothing modern at all, Trellis provides a path to integration — without replacing what already works.
You don't need a new stack. You need a better layer.